heather had to educate her friends and classmates and even a teacher who was using peanut candy for a science lesson. >> and she said, "how allergic are you?" i said, "i can't be in the room if we're doing this experiment." and she dismissed me from class, and that prevented my learning. some teachers, you know, really help me out, and some teachers don't understand it. >> heather spoke about her condition at a conference in washington, d.c. she was invited by f.a.a.n., the food allergy and anaphylaxis network. >> it was really interesting 'cause i've never been with a group of people who all understand [chuckling] what i'm going through. >> kids like heather often carry a medical device to treat a reaction until they can get to a doctor. >> all of our friends know they can't bring cakes or cookies or things like that unless it's allergen-safe. >> if you know anyone who has food allergies, be a "pal." that stands for "protect a life." first, don't share food. be sure to wash your hands after eating foods like nuts. just touching someone can set off their allergic reaction. learn what triggers